On the relationship between deteriorated level of ASR damaged concrete and lithium migration from acceleration lithium migration technique test

Wei Chien Wang, Chih Chien Liu, Chau Lee

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

This research is to study the effect of deteriorated level on the ions migration in inhibiting the concrete damaged by ASR using electrochemical technique. Cylindrical concrete specimens made by reactive sandstone with 10 cm diameter and 5 cm height were prepared at the ages of 7, 14, 28, 90, and 180 days curing in a 38°C and 100% R.H. storage environment. The accelerated lithium migration technique (ALMT) was performed using LiOH·H 2O and Ca(OH)2 as electrolytes for anode and cathode, respectively. 9 A/m2 current density was used to drive lithium ion into and remove sodium ion out of the concrete. The results show that the rates of ions migration increase with increasing the deteriorated level of specimen. Furthermore, a linear relationship exists between the non-steady state migration coefficient of Li+ and the deteriorated level of specimen.

原文???core.languages.en_GB???
主出版物標題Advances in Structures
頁面3812-3819
頁數8
DOIs
出版狀態已出版 - 2011
事件2011 International Conference on Structures and Building Materials, ICSBM 2011 - Guangzhou, China
持續時間: 7 1月 20119 1月 2011

出版系列

名字Advanced Materials Research
163-167
ISSN(列印)1022-6680

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???event.eventtypes.event.conference???2011 International Conference on Structures and Building Materials, ICSBM 2011
國家/地區China
城市Guangzhou
期間7/01/119/01/11

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